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| author |  Ricardo Katz <rikatz@users.noreply.github.com>
| 2018-03-13 11:35:29 -0300 |
|---|---|---|
| committer |  Miek Gieben <miek@miek.nl>
| 2018-03-13 14:35:29 +0000 |
| commit | 3bb4e659b2d0a9020c76968c82b4b8d776a6059f (patch) | |
| tree | a9ddf7b5d320267e26a9c12e3eeddb74dd80d9b1 | |
| parent | 3e3d8cc845b8e072efc75043c9aa3df318ec3bf3 (diff) | |
| download | coredns-3bb4e659b2d0a9020c76968c82b4b8d776a6059f.tar.gz coredns-3bb4e659b2d0a9020c76968c82b4b8d776a6059f.tar.zst coredns-3bb4e659b2d0a9020c76968c82b4b8d776a6059f.zip | |
Document the service with ClusterIP wildcard (#1605)
This PR documents the trick exposed in coredns/coredns#1357 about using wildcards to get all POD IPs from a service with ClusterIP (as used in 'endpoints')
| -rw-r--r-- | plugin/kubernetes/README.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/plugin/kubernetes/README.md b/plugin/kubernetes/README.md index 136b301f5..46e32cf2b 100644 --- a/plugin/kubernetes/README.md +++ b/plugin/kubernetes/README.md @@ -198,3 +198,10 @@ or the word "any"), then that label will match all values. The labels that acce * _port and/or protocol_ in an `SRV` request: __port_.__protocol_.service.namespace.svc.zone., e.g. `_http.*.service.ns.svc.` * multiple wild cards are allowed in a single query, e.g. `A` Request `*.*.svc.zone.` or `SRV` request `*.*.*.*.svc.zone.` + + * Wildcard can be used also to resolve PODs IPs as `A` records in a Service with ClusterIP. e.g.: `*.service.ns.svc.myzone.local` will return the PODs IPs as the following: + ``` +*.service.default.svc.cluster.local. 5 IN A 192.168.10.10 +*.service.default.svc.cluster.local. 5 IN A 192.168.25.15 +``` + This response can be randomized using the `loadbalance` plugin |